This is the 2nd time this has happened, but lots of prints in between with no other problems. I'm on a MacPro, latest OS and the 9900 is connected via network (ethernet). Printing from LR, current version.

Does it happen with just that file? I recently had a file that somehow had a "cancel print" command embedded in the file, and a few years ago another file that would cause several colors to stop working until the computer was rebooted. Doesn't happen often, and I agree that looks like a data issue. Cleared up both of mine by reverting to older edits of the images.

Are you hooked up USB or network? Could heavy, unrelated network traffic in the background might cause a glitch? Maybe a cable with an intermittent hardware issue, or a flaky router or switch, or something like that. Did you get up and move around about the time the glitch occurred, might have been a static zap to the cable.

Have also had the end of the media come off the roll, and then reattach itself to the core adhesive with the print side of the media, which is a very strong bond and causes a smeared effect because the media can't advance.

Try running a memory test. A memory module with a small defect can casue odd data corruption. Especially if your system exhibits other oddities, strange crashes, etc. I think memtest86+ (memtest.org) runs on Intel CPU based Macs, not sure if you have one of those... I'm a PC guy.

the 9900 is the only thing connected via the network. I do run quite a few apps at the same time and I was probably doing something else while it was spooling out. I'm the only one in the building so wouldn't be anyone else interfering. I can't use USB because the printer is further away from the computer and on the opposite side of the room. I printed the file again with no problem so it can't be in the file itself. I guess I'll monitor what I'm doing the next time it happens. Just wanted to see if anyone else ran across this and knew a definite cause.

Just a quick suggestion. Since I first started running the 9900 three years ago I've been using extended USB cables. They're not just the usual extension cable. There's a contraption on the female end that I believe boosts the signal somewhat before passing it along. I could be wrong about that, but what I do know is that it works. For the past two years I've been using 3-5 metre cables joined together, plus a 2 metre cable at the printer end, with absolutely no problem. I've done several tests with one 2 meter cable and there is no difference at all between that and the 3 extension cables. All of this to say that you can cover a 15 metre plus distance very nicely with these cables, should you want to try that method. The cables can be purchased at Canada Computers, haven't checked anywhere else. Hope this helps

I had a case where a defective video adapter was squirting more or less random data to the wrong ports and that created a variety of print related problems. Not saying this is due to video but only that something is probably writing to the data stream while the print output is being created. It could be, for example a faulty drive or device driver.

Can you print from a different machine or can you create a print file and print through qimage or similar? If the problem becomes easy to duplicate then tracking it down is pretty quick.

BTW what some others are referring to by way of a USB extension is known as an active USB extension. USB does error correction in about the same way that tcp/ip does and USB 2 is about half the speed of gigabit Ethernet. Don’t know if USB 3 is faster than gigabit Ethernet, but it could be.

I'm seen exactly that on a 9890 and 9900... more on the 9900... but that's probably because its older and self cleans more. It happens when a print job (usually the first after a long idle period) is interrupted by a longer than normal self check/clean process before the actual print starts. The print will complete normally but there will be a stripe of misplaced data near the leading edge of the print. I really think (what I'm seeing at least) is a firmware glitch. Network problems or bad cables could probably cause something similar as well... but I've seen this often enough on different printers/computers in the situation described above to think that its just a software bug.

the print was made after the printer was idle for a few days and I do believe there was a cleaning cycle happening just before the print started. I suppose some corrupt data could've been sent along the pipeline from other work I was doing on the computer waiting for the cleaning cycle to finish. I made half a dozen prints this afternoon with none of those problems, although a few other problems evolved.

The printer stopped about 1/3 of the way into a print. No error messages or anything - just dead stop. I turned it off and on again, and then it said that the paper wasn't loaded even though it was. I think when it was trying to load, it 'saw' the partially printed image and for some reason didn't read that there was paper. I tried reloading quite a few times, then tried a different roll. After shutting down/restarting a few times, it finally took. When I tried the original roll again, it wouldn't load... not until I manually cut the partial image off the roll, restarted the printer and tried again. It took almost an hour to get it working again, but when it started, it worked fine for those half dozen prints.

At one of the restarts, I got the out of ink warning (not just the low ink) on ALL the colours - something like what John had in another thread. A restart cleared that error though.

When it works.. it works great. And not one clog during this whole process! Just frustrating that I had to jump through hoops and waste an hour getting it to work. I hope it's not like this all the time and once my volume picks up (always slow at this time of year) that it just works.

When it works.. it works great. And not one clog during this whole process! Just frustrating that I had to jump through hoops and waste an hour getting it to work. I hope it's not like this all the time and once my volume picks up (always slow at this time of year) that it just works.

Readily I'll have to admit that between the two of us, I am a little unnerved, Mike. We'll have to see as we move forward I guess.

Hi Mike! <comedy> What you've got there is the result of Epson's new PEE feature. (Printer Embellished Enhancement) Available only on the X900 series printers, any time the printer thinks your image maybe a bit dull, bland, lifeless or boring it will use this proprietary feature to instantly turn your work into a true masterpiece! </comedy>

<toilet humor> So now you can say "This image looks like PEE!" </toilet humor> - Jim

Went into the studio this afternoon to try some more printing - two beautiful prints with no hiccups and no clogs. One was in the Epson's Advance B&W mode with a very neutral B&W. Quite impressed as I hadn't tried this before.